So far as I know, printers are only ever profiled, not calibrated, but I stand to be corrected on this.

Actually, users of Canon wide format (24 inches and wider) printers talk about calibrating the printer as a separate process to profiling paper on the printer. I don't use Canon printers, so I don't know what this entails.

Unlike Epson printers, Canon wide format printers have user replaceable heads. Perhaps what they are talking about is head alighnment, but perhaps not.